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231064 = 23171699
BaseRepresentation
bin111000011010011000
3102201221221
4320122120
524343224
64541424
71651441
oct703230
9381857
10231064
11148669
12b1874
1381232
14602c8
15486e4
hex38698

231064 has 16 divisors (see below), whose sum is σ = 459000. Its totient is φ = 108672.

The previous prime is 231053. The next prime is 231067. The reversal of 231064 is 460132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714 + ... + 985.

2231064 is an apocalyptic number.

It is an amenable number.

231064 is a deficient number, since it is larger than the sum of its proper divisors (227936).

231064 is a wasteful number, since it uses less digits than its factorization.

231064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231064 is about 480.6911690472. The cubic root of 231064 is about 61.3635904061.

Adding to 231064 its reverse (460132), we get a palindrome (691196).

It can be divided in two parts, 2 and 31064, that multiplied together give a triangular number (62128 = T352).

The spelling of 231064 in words is "two hundred thirty-one thousand, sixty-four".

Divisors: 1 2 4 8 17 34 68 136 1699 3398 6796 13592 28883 57766 115532 231064